What is the primary responsibility of the Central Commission for Discipline Inspection (CCDI)?

The primary responsibility of the Central Commission for Discipline Inspection (CCDI) is to monitor compliance of party members. This organization plays a crucial role in maintaining the integrity and discipline within the Communist Party of China. It investigates corruption, wrongdoing, and any violations of party rules among its members. By ensuring that party officials adhere to ethical standards and conduct, the CCDI aims to uphold the party's authority and legitimacy, which is vital in a political system where the Communist Party holds significant power.

Monitoring compliance helps to deter malfeasance and fosters a culture of accountability, which is a key aspect of the CCDI's function. This task is foundational to party governance and helps in maintaining the party's image among the public and inside the political elite. The other choices, such as implementing policies, managing economic programs, or electing political leaders, do not accurately represent the CCDI's specific function, as these responsibilities fall under different entities or branches within the Chinese governmental and political framework.